Accupro 95170086 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The ACCUPRO 95170086 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 5/8 inch diameter, a 7/8 inch length of cut, and a 3 inch overall length. The four-flute, right-hand spiral design with a 38-degree helix promotes efficient chip evacuation and smooth cutting action. An AlCrTiN coating provides thermal and oxidative resistance, extending tool life in high-speed and dry-cutting applications. The variable index geometry helps reduce chatter, making this end mill well suited for finishing passes and contour work on hardened and abrasive materials. Centercutting capability allows plunge entry without a pre-drilled pilot hole.

This end mill is used in CNC machining centers and manual mills for contouring, profiling, slotting, and ramping operations. The 0.120 inch corner radius reduces stress concentrations at the cutting edge, which is particularly useful when machining mold cavities, die components, and precision aerospace or automotive parts. The straight cylindrical shank with a 5/8 inch diameter fits standard ER collet chucks and end mill holders commonly found in production shops. It is suited for cutting ferrous alloys, stainless steels, hardened steels, and other demanding workpiece materials where coating performance and edge retention are critical.

Key Features

• AlCrTiN coating for high-temperature resistance and extended tool life in hard-material cutting
• Solid micrograin carbide construction for rigidity and wear resistance
• Four right-hand spiral flutes with 38-degree helix for efficient chip evacuation
• 0.120 inch corner radius reduces edge chipping and stress on workpiece corners
• Variable index flute spacing reduces harmonic vibration and chatter
• Centercutting design enables direct plunge entry into workpiece material

Compatibility

Designed as an OEM-style replacement and standard production end mill for CNC machining centers and manual mills accepting a 5/8 inch straight cylindrical shank toolholder or collet chuck.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet or end mill holder bore size matches the 5/8 inch shank diameter before torquing the retention mechanism to the toolholder manufacturer specification. Inspect the cutting edges for chips or coating damage before each use, and confirm runout at the tool tip meets the tolerance requirements of the intended operation.